GSTR-2B Reconciliation Format — ITC Matching Tracker (Word)

An invoice-level register matching ITC per books against GSTR-2B, with the Section 16(4) deadline, Rule 37 and Rule 37A reversal triggers, and follow-up actions tracked per invoice.

Free · CORAA original — SA-aligned

Updated 29 Jul 2026

Type

ITC reconciliation register

Legal basis

S. 16(2)(aa), Rule 36(4) — 2B-matched ITC only

Time limit

S. 16(4) — 30 Nov following FY / annual return

Reversal triggers

Rule 37 (180 days) & Rule 37A (supplier default)

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Engagement details

The client and period this document is for.

Name of registered person

GSTIN

Financial Year

Prepared by

Reviewed by

Date of working paper

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GSTR-2B Reconciliation Format — ITC Matching Tracker

GSTR-2B vs Books — ITC Reconciliation Register

Registered person: {{entity_name}} | GSTIN: {{entity_gstin}} | Financial Year: {{financial_year}}

1. Objective

This register matches input tax credit as per the books of account against FORM GSTR-2B, invoice by invoice, for FY {{financial_year}}. Since 1 January 2022, section 16(2)(aa) read with Rule 36(4) restricts ITC to invoices and debit notes communicated in GSTR-2B — so every books-only entry is a credit at risk, and every 2B-only entry is either an unrecorded purchase or a supplier-side error. The register also tracks the section 16(4) outer time limit and the reversal triggers under Rule 37 and Rule 37A.

2. Invoice-level Matching Register

Sl.	Supplier GSTIN	Status
1		M / BO / 2BO / MM
2
3
4
5
	Total

Status codes: M — matched (books = 2B); BO — books only (supplier has not uploaded / filed); 2BO — 2B only (not recorded in books); MM — mismatch in taxable value, tax amount, or head (IGST vs CGST+SGST).
Action codes: F — follow up with supplier for upload / filing; R — reverse in GSTR-3B Table 4(B)(2) pending resolution; RC — reclaim on resolution and disclose in Table 4(D)(1); B — record in books (for 2BO purchases actually received); X — reject / do not avail (ineligible or not our invoice).
S. 16(4) column: enter the last date to avail the credit — the earlier of 30 November following the end of the financial year to which the invoice or debit note pertains, or the date of filing the annual return for that year. A BO invoice still unresolved as this date approaches must be escalated, because the credit lapses permanently once the window closes.

3. Reversal Triggers — Rule 37 and Rule 37A

Rule 37 — 180-day payment condition: where the recipient fails to pay the supplier the invoice value together with tax within 180 days of the invoice date, the proportionate ITC must be reversed (with interest under section 50) in the GSTR-3B for the period in which the 180 days expire. The credit can be re-availed, without any time limit, once payment is made. Track ageing of creditors against this register.
Rule 37A — supplier non-filing: where the supplier has reported the invoice in GSTR-1 but has not furnished GSTR-3B for that period by 30 September following the end of the financial year in which the ITC was availed, the recipient must reverse the ITC in a GSTR-3B filed on or before 30 November following that financial year; on failure, the amount is payable with interest. The credit may be re-availed once the supplier furnishes the pending GSTR-3B.
Ineligible / blocked credits: entries hitting section 17(5) (blocked credit) or used for exempt supplies (Rules 42 / 43) should be marked X in the action column and excluded from availment regardless of 2B status.

4. Summary

Category	No. of invoices	ITC amount (₹)	Disposition
Matched (M)			Availed in GSTR-3B Table 4(A)(5)
Books only (BO)			Follow-up / hold till in 2B; watch s. 16(4)
2B only (2BO)			Verify receipt; record or reject
Mismatch (MM)			Resolve with supplier; avail correct amount
Rule 37 reversals			Reversed in Table 4(B)(2); re-avail on payment
Rule 37A reversals			Reversed by 30 Nov; re-avail on supplier filing
Blocked u/s 17(5)			Permanently reversed — Table 4(B)(1)

	Name	Signature	Date
Prepared by	{{prepared_by}}		30 July 2026
Reviewed by	{{reviewed_by}}

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What’s inside

An excerpt from the template.

GSTR-2B vs Books — ITC Reconciliation Register

Registered person: ___ | GSTIN: ___ | Financial Year: ___

1. Objective

This register matches input tax credit as per the books of account against FORM GSTR-2B, invoice by invoice, for FY ___. Since 1 January 2022, section 16(2)(aa) read with Rule 36(4) restricts ITC to invoices and debit notes communicated in GSTR-2B — so every books-only entry is a credit at risk, and every 2B-only entry is either an unrecorded purchase or a supplier-side error. The register also tracks the section 16(4) outer time limit and the reversal triggers under Rule 37 and Rule 37A.

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About this template

What you’re downloading, and when to use it.

This template follows the format published by the Institute of Chartered Accountants of India (ICAI) in the AASB Audit Working Paper Templates (June 2023), the authoritative reference for Indian statutory-audit documentation. Fill in your firm’s letterhead and the engagement details on the form above, click Download Word file, and you’ll get a fully formatted .docx ready to use.

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Common questions

FAQs.

What is the time limit to claim ITC under Section 16(4)?

ITC for an invoice or debit note must be availed by the earlier of two dates: 30 November following the end of the financial year to which the invoice or debit note pertains, or the date of filing the annual return (GSTR-9) for that financial year. Filing GSTR-9 early therefore closes the window early. After this date the credit lapses and cannot be claimed.

Can I claim ITC if it is not showing in GSTR-2B?

Generally no. Section 16(2)(aa) read with Rule 36(4) restricts ITC to invoices and debit notes that the supplier has reported and that appear in your GSTR-2B. If an invoice is missing, the practical remedy is to follow up with the supplier to report it in their GSTR-1 — before the Section 16(4) window closes. Limited exceptions exist for credits that never flow through 2B, such as IGST paid on imports (from ICEGATE data) and self-invoiced reverse-charge credits.

What is Rule 37A and when do I have to reverse ITC under it?

Rule 37A covers the case where your supplier reported the invoice in GSTR-1 (so it appeared in your 2B) but never filed the GSTR-3B for that period — meaning the tax was never actually paid to the government. If the supplier has not furnished that GSTR-3B by 30 September following the end of the financial year in which you availed the credit, you must reverse the ITC in a GSTR-3B filed on or before the following 30 November; otherwise it becomes payable with interest. You can re-avail the credit once the supplier files the pending return.

What is the 180-day payment rule for ITC?

Under the second proviso to section 16(2) read with Rule 37, if you do not pay the supplier the value of the invoice plus tax within 180 days of the invoice date, you must reverse the proportionate ITC with interest in the GSTR-3B for the period in which the 180 days expire. The credit can be re-availed once payment is made, and there is no time limit on that re-availment.

Where do I show ITC reversals in GSTR-3B?

Temporary reversals (2B-matched credit held back pending resolution, Rule 37/37A reversals intended to be reclaimed) go in Table 4(B)(2), and when reclaimed they are added back in Table 4(A)(5) and disclosed in Table 4(D)(1). Permanent reversals — blocked credits under section 17(5) and exempt-supply reversals under Rules 42/43 — go in Table 4(B)(1) and are not reclaimable.

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